An air purifier is a mechanical device the purpose of which is to free air from pollutants. The popularity of air purifiers is caused by the results from environmental researches which claim that the air inside homes is dirtier than the air outside of homes. Air purifiers are particularly beneficial for allergy sufferers and asthmatics or those who wish to reduce second-hand smoke.

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The more you understand about any subject, the more interesting it becomes. As you read this article you'll find that the subject of Air Purifiers is certainly no exception. Room Air Purifiers Room air purifiers replaced tabletop units in the 1990s as the leading type of home air purifier. Tabletop units proved to be mostly ineffective, because of the inadequate volume of air being moved through the unit. Room air purifiers are almost as portable, and they are a lot more effective. There are three basic types of home air purifiers made for single-room use. HEPA Filtered Air Purifiers HEPA stands for
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